Horseshoe



(Na Modem H. B. SCHUREMAN.

HOBSESHOE. No. 338,789. Pauented Mar. 30, 1886.

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' ciprocally-inclined sides.

UNITED STATES PATENT OFFICE.

HOWVARD B. SOHUREMAN, OF NEXVARK, NE\V JERSEY.

HORSESHOE.

SPECIFICATION forming part of Letters Patent No. 338,789, dated March 30, 1386.

Application filed January 30, 1885. Serial No. 154,379.

To all whom it may concern:

Be it known that I, HOWARD B. SoHURE- MAN, a citizen of theUnited States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Horseshoes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

The object of this invention is to give increased security to an adjustable or separable toe or heel calk in a horseshoe, and to facilitate the arrangement of said calk in and its withdrawal from the said shoe.

The invention consists in the peculiar arrangements and combinations of parts, substantially as will be hereinafter set forth, and finally embodied in the clauses of the claim.

Referring to the accompanying drawings, in which like letters indicate corresponding parts in each of the several figures, Figure l is a plan of a horseshoe illustrating the several features of improvement; and Figs. 2, 3, and 4 are sectional views, taken, respectively, through lines 00, y, and 2. Figs. 5 and 6 are perspective views of toe-calks, which, though not preferred, maybe employed under certain conditions.

In said drawings, a indicatestheshoe-body, b the toe-calk, and cc the heel-calks.

In carrying out the invention I form grooves d d on the under side of the shoe, either by means of dies or by sawing the metal, the former method being preferred. The sides of these grooves incline, as indicated in Fig. 2, so as to receive and hold calks b 0, having re- The groove of the toe-calk extends at one end to the edge of the shoe, and at the other to an abutment, e, the bottom of said groove being preferably on a plane parallel with that of the shoe. The grooves of the heel-calks also terminate at one end short of the edge of the shoe, so that abutments e are formed to prevent a movement of the calks in one direction. The bottom of the grooves for the heel-calks are longitudinally inclined, as shown in Fig. 4, the grooves be- (No model.)

ing deepest at the end near the abutment, so that when the prismatic calks are inserted therein they lie at an incline, and present an inclined sharpened edge to the ground, the points of lowest projection striking the ground first and taking the larger part of the wear. As the calks wear away, new points on the sharpened edge are presented to the ground, so that a' comparatively sharp calk is retained or preserved for a long time. The heel-calk grooves extend from the abutments e at the extremities of the heels of the shoe forward parallel with, or approximately parallel with, the sides of the said heels, being lost at points about midway between the shoe and heel extremities. The bottoms of the several grooves are indented at points distant from the abutments,the distance of the indentations from the said abutments being about equal to the length of the calk.

The calks are provided at one end near their bases with holding-lugs 9, adapted to be bent down at an angle to the plane of the shoe into the said indentations. WVhen the calks are slipped into position against the abutments, and thelugsbent into the bottom indentations, as described, the calks are held permanently in position, and said holding-lugs, because of their peculiar position and relation to the indented bottom are perfectly protected from breakage or detachment. \Vhen the shoe is.

in use, there is no danger of the calks being prematurely dropped.

I am aware thata grooved and indented shoe somewhat similar to the one herein shown has been provided with a calk having a holdinglug bent into an indentation, and this broad idea or feature of invention I do not wish to be understood as claiming; but in the case referred to the indentation is at the side of the groove, and the lug is bent laterally or in a direction parallel with the plane of the shoe, so that the said lug is exposed or presents an exposed joint in such a manner as to be easily forced from the said lateral indention, should the shoe when in use strike or rest on a sharp stone or other disengaging instrument. In the improvement pressure on the lug only tends to make the union of parts more perfect.

Although I preferthe double form of groove shown in Figs. 1 and 2, I do not limit myself thereto, as the same may be varied by forming a third groove in the middle ridge, h, or by doing away with said ridge and providing a single wide groove, the calk in the last case having a simple or plane'seat, as indicated in Fig. 5. Again, I may dispense with the abutment e e, and form lugs and corresponding indentations at each end of the calks, as in Figs. 5 and 6;

I do not limit myself to any position or shape of calk or to any form orposition of groove for said calk.

Having thus described the invention, what I claim as new is 1. In combination, the shoe-body having a longitudinally-inclined groove, and a pris' matie calk arranged in said groove, substantially as'and for the purposes set forth.

2.- In combination with the shoe-body, calks arranged longitudinally on the heels thereof, the ground-engaging edges of said calk being sharpened and inclined, as shown and described, for the purpose stated. 1

3. Theimproved shoe herein described,having on the under side thereof a groove with an indented bottom, and a calk arranged in said groove and held therein by a lag bent into the indentation in a direction at right angles to the plane of the shoe, as shown and described, the said parts being combined substantially as and for the purposes set forth.

4.. The improved shoe, combining therein the shoe-body at, having on the under side thereof a groove with inclined sides, an abutment, and a bottom indentation, and a calk arranged in said groove against said abutment,

and held therein by alug turned in adirection at right angles to the plane of said shoe into said indentation, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 28th day of January, 1885. 1

' HOWARD B.

Witnesses:

CHARLES H. PELL, FREDK. F. CAMPBELL.

soHU REM AN. 

